/* 调整新闻列表样式 */
.thumbnail {
    height: 30%;
  }
  .caption {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .caption h3 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .caption p {
    font-size: 14px;
    margin-bottom: 10px;
  }

.dropdown-menu {
    background-color: transparent;
    border: none;
}
